Home / 13,397.74-18,489.53-7,429.42

Finding the Fourth Proportional to 13,397.74, 18,489.53 and 7,429.42

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Solution

The fourth proportional to 13,397.74, 18,489.53 and 7,429.42 is: 10,252.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.74 : 18,489.53 = 7,429.42 : x
  2. Step 2: Convert to fraction form
    13,397.74/18,489.53 = 7,429.42/x
  3. Step 3: Cross multiply
    13,397.74x = 18,489.53 × 7,429.42
  4. Step 4: Simplify right side
    13,397.74x = 137,366,483.97
  5. Step 5: Solve for x
    x = 137,366,483.97/13,397.74
  6. Step 6: Final answer
    x = 10,252.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.